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Subsurface ocean
Definition
A liquid water ocean hidden beneath the icy crust of a moon, kept liquid by tidal friction. Europa (Jupiter moon) and Encelade (Saturn moon) have them, making them major targets in the search for life.
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A liquid water ocean hidden beneath the icy crust of a moon, kept liquid by tidal friction. Europa (Jupiter moon) and Encelade (Saturn moon) have them, making them major targets in the search for life.